#introduce{width: 100%;height: 125px;position: absolute;margin-top: 550px;}
#introduce .introduce_box{width: 1200px;height: 125px;background-color: #999999;margin: 0 auto;}
#introduce .introduce_box font{color:#fff;font-size: 25px;margin-left: 50px;
    margin-top: 15px;position: absolute;}
#introduce .introduce_box p{width:1100px;height:auto;color:#fff;font-size: 15px;margin-left: 50px;margin-top: 55px;
    margin-right: 50px;position: absolute;display: block;}